This therapy is used to help children with sensory processing difficulties, such as those with Autism Spectrum Disorder (ASD), Attention Deficit Hyperactivity Disorder (ADHD), or Sensory Processing Disorder (SPD). SIT is often performed by occupational therapists and involves play-based activities that use equipment like swings, trampolines, and slides. The goal of SIT is to help children improve their ability to process sensory information and respond appropriately to everyday stimuli. 

This therapy uses scents to stimulate or calm the user. Scents can be used on a one-off basis or on a regular basis over a period of weeks. A trained therapist can use a simple test to determine if the user has any weakness in their ability to smell.